I have an AlienWare Aurora computer, it was an Amd System, it had a single core processer, 256mb graphics card and Asus Motherboard. I bought an Intel DP55WB Motherboard, an i5 Processor, 4 gig DDR3 ram and a 1Gb GDDR5 ATI Sapphire HD 5770. I put in the motherboard and connected it all up, When i turn on the computer nothing comes up on the screen and the motherboard just keeps beeping. The fans and all the spin away. Anyone know the Problem>?